Homing problems on Z-axis

Good point about the home offset
Actually i figured out what the problem was just when i went to bed,- and it was far worse than a broken cable.
When disconnecting the machine to put it in a box, i did not have the common sence to just unplug the plug from the breakout board.
I actually unscrewed all...
And then - the next day putting them back in - i put the common ground to all three home switches into an unused input port - and not in the ground port - in essence leaving all home switches floating.
So the problem was my mind not understanding what my eyes where seing.
Worked just like supposed again
Br Jesper

Yes - actually i was able to jog Z both up and down, and in the direction that i wanted.
The error message ("cannot unhome while moving joint 2") itself actually hinted that the link from the home switch was broken.
I just failed to see that actually all three home switches where triggered as being active - since i didn't know how to use HAL meter

/Jesper